Initial commit

1 files changed, 56 insertions, 0 deletions

diff --git a/src/libnsss/nsss_switch_shadow_read.c b/src/libnsss/nsss_switch_shadow_read.c
new file mode 100644
index 0000000..1806c6d
--- /dev/null
+++ b/src/libnsss/nsss_switch_shadow_read.c
@@ -0,0 +1,56 @@
+/* ISC license. */
+
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+#include <skalibs/posixplz.h>
+#include <skalibs/uint32.h>
+#include <skalibs/uint64.h>
+#include <skalibs/error.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/unix-timed.h>
+#include <nsss/shadow-def.h>
+#include "nsss-switch-internal.h"
+
+/*
+   Expects:
+     8 bytes sp_lstchg
+     8 bytes sp_min
+     8 bytes sp_max
+     8 bytes sp_warn
+     8 bytes sp_inact
+     8 bytes sp_expire
+     8 bytes sp_flag
+     4 bytes total length of strings (including \0's)
+     \0-terminated sp_namp
+     \0-terminated sp_pwdp
+*/
+
+int nsss_switch_shadow_read (buffer *b, struct spwd *sp, stralloc *sa, tain_t const *deadline, tain_t *stamp)
+{
+  struct spwd sptmp ;
+  uint64_t x ;
+  uint32_t total, len ;
+  char *p ;
+  char buf[60] ;
+  if (!buffer_timed_get(b, buf, 60, deadline, stamp)) return 0 ;
+  uint64_unpack_big(buf, &x) ; sptmp.sp_lstchg = x ;
+  uint64_unpack_big(buf + 8, &x) ; sptmp.sp_min = x ;
+  uint64_unpack_big(buf + 16, &x) ; sptmp.sp_max = x ;
+  uint64_unpack_big(buf + 24, &x) ; sptmp.sp_warn = x ;
+  uint64_unpack_big(buf + 32, &x) ; sptmp.sp_inact = x ;
+  uint64_unpack_big(buf + 40, &x) ; sptmp.sp_expire = x ;
+  uint64_unpack_big(buf + 48, &x) ; sptmp.sp_flag = x ;
+  uint32_unpack_big(buf + 56, &total) ;
+  if (!stralloc_readyplus(sa, total)) return 0 ;
+  if (!buffer_timed_get(b, sa->s + sa->len, total, deadline, stamp)) return 0 ;
+  if (sa->s[sa->len + total - 1]) return (errno = EPROTO, 0) ;
+  p = sa->s + sa->len ; len = total ;
+  sptmp.sp_namp = p ; x = strnlen(p, len) + 1 ; p += x ; len -= x ;
+  if (!len) return (errno = EPROTO, 0) ;
+  sptmp.sp_pwdp = p ; x = strnlen(p, len) + 1 ; p += x ; len -= x ;
+  if (len) return (errno = EPROTO, 0) ;
+  sa->len += total ;
+  *sp = sptmp ;
+  return 1 ;
+}